125 MHz MEMS XO with Standby — board-fit note
The DSC1505AI3A-125M0000T is a MEMS-based XO (Standard) delivering a 125 MHz LVCMOS output from a 1.8V supply rail. The MEMS resonator replaces the quartz blank, which means the oscillator is inherently more resistant to shock and vibration than a quartz crystal — useful in portable or industrial equipment where the board sees mechanical stress. The Standby (Power Down) function drops the supply current to 1 µA typ — the oscillator output goes high-impedance, and the core draws negligible current until the enable pin is pulled high again. This eliminates the need for a separate load switch or enable buffer on the clock rail.
Package and supply — 4-VDFN with exposed pad
Housed in a 4-VDFN Exposed Pad package measuring 7.00 mm x 5.00 mm x 0.90 mm. Supply voltage is 1.8V nominal, and the maximum supply current is 7.5 mA — well within the budget of a 1.8V rail shared with an FPGA bank or a PHY core supply.
Sourced through independent distribution; quoted to order against the BOM quantity.